Maintenance tool stool

Abstract

The invention discloses a maintenance tool stool which comprises a first lying plate, a second lying plate and a third lying plate which are hinged in sequence, and the first lying plate, the second lying plate and the third lying plate can rotate to be in an initial posture for people to lie flat, a Z-shaped posture for people to sit and a folding posture for storage and carrying. According to the maintenance tool stool, a person can lie on the maintenance tool stool in the initial posture, the person can maintain the vehicle at the bottom of the vehicle conveniently, meanwhile, by arranging an elevation angle adjusting mechanism, when the person needs to raise the head to observe and maintain the vehicle, the inclination angle of a third lying plate can be adjusted, the head of the person is supported, and the comfort during maintenance is improved; when the personnel need to maintain the periphery of the vehicle, the personnel can sit on the third lying plate to maintain the vehicle by changing the first lying plate, the second lying plate and the third lying plate from the initial posture to the Z-shaped posture, and after maintenance is completed, the folding posture is changed, so that the personnel can conveniently store and carry the vehicle.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle repair tools, and in particular to a maintenance tool bench. Background Art

[0002] The statements herein only provide background art related to the present invention and do not necessarily constitute prior art.

[0003] The vehicle repair tool bench is an indispensable tool in the vehicle repair process, and its main function is to provide a stable and comfortable working platform for repair personnel. However, the existing vehicle repair tool benches have the following problems:

[0004] 1. The existing repair benches have a simple structure and single function. Usually, only a fixed seat cushion is provided, which cannot meet the needs of repair personnel in different repair scenarios;

[0005] 2. The seat cushion and backrest of the repair bench are not reasonably designed, unable to provide sufficient support and comfort, and it is easy to cause fatigue to repair personnel after long-term use. Summary of the Invention

[0006] The purpose of the present invention is to address the above deficiencies and provide a maintenance tool bench that can meet the different usage requirements of repair personnel in various maintenance scenarios.

[0007] To solve the above technical problems, the present invention adopts the following technical solutions: A maintenance tool bench includes a first lying board, a second lying board, and a third lying board that are sequentially hinged. The first lying board, the second lying board, and the third lying board can be rotated into an initial posture for a person to lie flat, a Z-shaped posture for a person to sit, and a folded posture for storage and carrying; a flipping limit component and a guide rail component are arranged on the first lying board. The flipping limit component is used to limit the continuous flipping of the second lying board after the first lying board, the second lying board, and the third lying board are flipped into the Z-shaped posture; the guide rail component is used to guide the second lying board to move up and down along the guide rail component, and to make the second lying board and the third lying board flip downward to the folded posture together when the second lying board moves down to the lower limit position; an elevation angle adjustment mechanism is arranged between the second lying board and the third lying board, which is used to adjust the upward flipping angle of the third lying board in the initial posture.

[0008] Furthermore, the first lying board, the second lying board, and the third lying board are each composed of a board body and a plurality of universal wheels located at the bottom of the board body;

[0009] The flipping limit component includes at least one stopper arranged on the board body of the first lying board. When the second lying board and the third lying board are flipped into the Z-shaped posture, the second lying board abuts against the stopper, and the universal wheels of the third lying board abut against the second lying board.

[0010] Further, the guide rail assembly includes a fixed guide rail disposed on one side of the first lying board close to the second lying board. An movable guide rail capable of moving up and down is slidably disposed within the fixed guide rail. A bump penetrating the fixed guide rail is disposed on the movable guide rail. A compression spring is disposed between the bump and the fixed guide rail. When the compression spring is in a natural state, the movable guide rail is located above the ground. Strip-shaped movable holes for the corresponding rotating shafts of the second lying board to move up and down are disposed within both the fixed guide rail and the movable guide rail. When the movable guide rail moves down to the lower limit position, the corresponding rotating shaft of the second lying board can move along the strip-shaped movable hole to the bottom of the universal wheel of the first lying board.

[0011] Further, the elevation angle adjustment mechanism includes a sliding rod slidably disposed at the bottom of the second lying board body and a top support plate rotatably disposed at the bottom of the third lying board body. The sliding rod can move closer to and farther away from the third lying board. A connecting rod is rotatably disposed between the sliding rod and the top support plate. When the second lying board and the third lying board are in the initial posture, the connecting rod and the top support plate are in a V shape, and the connection between the connecting rod and the top support plate abuts against the ground. The elevation angle adjustment mechanism further includes a driving component for driving the sliding rod to move closer to and farther away from the third lying board and a locking component for locking the sliding rod after it moves in place.

[0012] Further, the driving component includes a rotating shaft seat disposed at the bottom of the second lying board body. A shaft rod is rotatably disposed on the rotating shaft seat. A handle for a person to hold and rotate is disposed at one end of the shaft rod. A gear is disposed at the other end of the shaft rod. A tooth groove meshing with the gear is opened at the bottom of the sliding rod.

[0013] Further, the locking component includes a ratchet wheel synchronously rotating with the gear and a ratchet pawl component disposed at the bottom of the second lying board body;

[0014] The ratchet pawl component includes a ratchet pawl seat disposed at the bottom of the second lying board body. A ratchet pawl adapted to the ratchet wheel is slidably disposed on the ratchet pawl seat. A sliding groove for the ratchet pawl to slide is opened on the ratchet pawl seat. When the second lying board is in the initial posture, the ratchet pawl is located within the rotation area of the ratchet wheel. The ratchet pawl is used to prevent the ratchet wheel from rotating when the sliding rod moves farther away from the third lying board. When the second lying board is in a Z-shaped posture, the ratchet pawl is not located within the rotation area of the ratchet wheel.

[0015] Further, a plurality of storage grooves for placing tools are disposed on the board body of the first lying board. A magnetic plate for adsorbing tools is disposed within the storage grooves.

[0016] Further, storage grooves for accommodating the universal wheels are opened on the board bodies of the first lying board, the second lying board, and the third lying board, so that the universal wheels can be accommodated within the storage grooves in the folded posture.

[0017] The beneficial effects of the present invention are embodied in:

[0018] In the present invention, by providing a first lying board, a second lying board and a third lying board that rotate in sequence, the maintenance tool bench in the initial posture can be used for a person to lie flat on it, which is convenient for the user to repair the vehicle under the vehicle bottom. At the same time, since an elevation angle adjustment mechanism is provided between the second lying board and the third lying board, when the user needs to look up and observe and repair the vehicle, the inclination angle of the third lying board can be adjusted to provide support for the user's head, improving the comfort during maintenance. When the user needs to repair the surrounding of the vehicle, the first lying board, the second lying board and the third lying board can be changed from the initial posture to a Z-shaped posture until the second lying board is restricted by the flipping limit component. At this time, the user can sit on the third lying board, improving the comfort of the user in this working state. After the repair is completed, the second lying board can be moved down to the lower limit position along the guide rail component and then flipped to be converted into a folded posture, which is convenient for the user to store and carry, thus achieving the purpose of meeting the different use requirements of maintenance personnel in various maintenance scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional view of the initial posture of the present invention;

[0020] Figure 2 is Figure 1 a partial enlarged schematic view of the position A shown;

[0021] Figure 3 is Figure 1 a partial enlarged schematic view of the position B shown;

[0022] Figure 4 is a three-dimensional view of the folded posture of the present invention;

[0023] Figure 5 is a three-dimensional view of the Z-shaped posture of the present invention;

[0024] Figure 6 is a structural view of the elevation angle adjustment mechanism of the present invention;

[0025] Figure 7 is Figure 6 a partial enlarged schematic view of the position C shown;

[0026] Figure 8 is a partial view of the pawl component of the present invention.

[0027] In the figure:

[0028] 1. First reclining board; 2. Second reclining board; 3. Third reclining board; 4. Flip limit component; 5. Guide rail component; 51. Fixed guide rail; 52. Movable guide rail; 53. Bump; 54. Compression spring; 6. Elevation angle adjustment mechanism; 61. Slide bar; 62. Top support plate; 63. Link; 64. Drive component; 641. Rotating shaft seat; 642. Shaft rod; 643. Handle; 644. Gear; 65. Locking component; 651. Ratchet; 652. Pawl component. Detailed implementation mode

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figure 1-8 , the present invention discloses a maintenance tool stool, including a first reclining board 1, a second reclining board 2 and a third reclining board 3 that are sequentially hinged. The first reclining board 1, the second reclining board 2 and the third reclining board 3 can be rotated into an initial posture for a person to lie flat, a Z-shaped posture for a person to sit upright, and a folded posture for storage and carrying; a flip limit component 4 and a guide rail component 5 are arranged on the first reclining board 1. The flip limit component 4 is used to limit the continuous flipping of the second reclining board 2 after the first reclining board 1, the second reclining board 2 and the third reclining board 3 are flipped into the Z-shaped posture; the guide rail component 5 is used to guide the second reclining board 2 to move up and down along the guide rail component 5, and make the second reclining board 2 and the third reclining board 3 flip down to the folded posture together when the second reclining board 2 moves down to the lower limit position; an elevation angle adjustment mechanism 6 is arranged between the second reclining board 2 and the third reclining board 3, which is used to adjust the upward flipping angle of the third reclining board 3 in the initial posture.

[0031] In the present invention, by providing a first lying board 1, a second lying board 2 and a third lying board 3 that rotate in sequence, the maintenance tool bench in the initial posture can be used for a person to lie flat on it, facilitating the user to repair the vehicle under the vehicle bottom. At the same time, since an elevation angle adjustment mechanism 6 is provided between the second lying board 2 and the third lying board 3, when the user needs to look up and observe and repair the vehicle, the inclination angle of the third lying board 3 can be adjusted to provide support for the user's head, improving the comfort during maintenance. When the user needs to repair the surrounding of the vehicle, the first lying board 1, the second lying board 2 and the third lying board 3 can be changed from the initial posture to the Z-shaped posture until the second lying board 2 is restricted by the flipping limit component 4. At this time, the user can sit on the third lying board 3, improving the comfort of the user in this working state. After the repair is completed, the second lying board 2 can be moved down to the lower limit position along the guide rail assembly 5 and then flipped to be converted into a folded posture, facilitating the user to store and carry, so as to achieve the purpose of meeting the different usage requirements of maintenance personnel in various maintenance scenarios.

[0032] In one embodiment, the first lying board 1, the second lying board 2 and the third lying board 3 are each composed of a board body and a plurality of universal wheels located at the bottom of the board body;

[0033] The flipping limit component 4 includes at least one stopper provided on the board body of the first lying board 1. When the second lying board 2 and the third lying board 3 are flipped to the Z-shaped posture, the second lying board 2 abuts against the stopper, and the universal wheels of the third lying board 3 abut against the second lying board 2.

[0034] With such a design, the maintenance tool bench in the initial posture and the Z-shaped posture can both slide on the ground, facilitating the user to adjust the usage position according to the usage requirements. At the same time, through the cooperation of the stopper on the first lying board 1 and the universal wheels on the third lying board 3, when the maintenance tool bench rotated to the Z-shaped posture and the user sits, the flipping of the second lying board 2 and the third lying board 3 is hindered by the stopper and the universal wheels and cannot continue to rotate, thereby ensuring the stability of the user when sitting.

[0035] In one embodiment, the guide rail assembly 5 includes a fixed guide rail 51 provided on one side of the first lying board 1 close to the second lying board 2. An activity guide rail 52 capable of moving up and down is slidably provided in the fixed guide rail 51. A convex block 53 penetrating the fixed guide rail 51 is provided on the activity guide rail 52. A compression spring 54 is provided between the convex block 53 and the fixed guide rail 51. When the compression spring 54 is in the natural state, the activity guide rail 52 is located above the ground. Strip-shaped activity holes for the corresponding rotating shafts of the second lying board 2 to move up and down are provided in both the fixed guide rail 51 and the activity guide rail 52. When the activity guide rail 52 moves down to the lower limit position, the corresponding rotating shaft of the second lying board 2 can move along the strip-shaped activity hole to the bottom of the universal wheels of the first lying board 1.

[0036] With such a design, by sliding the rotating shaft of the second reclining board 2 in the strip-shaped movable hole, the position of the rotating shaft of the second reclining board 2 can be at the uppermost part of the strip-shaped movable hole both in the initial posture and the Z-shaped posture, improving the convenience of the upward flipping of the second reclining board 2. And by moving the movable guide rail 52 downward, the rotating shaft of the second reclining board 2 is moved to the lowermost part of the strip-shaped movable hole, which can avoid the collision between the second reclining board 2 and the first reclining board 1 when the second reclining board 2 flips downward, thus meeting the transformation requirements of various postures of the second reclining board 2.

[0037] In an embodiment, the elevation angle adjusting mechanism 6 includes a sliding rod 61 slidably arranged at the bottom of the body of the second reclining board 2 and a top support plate 62 rotatably arranged at the bottom of the body of the third reclining board 3. The sliding rod 61 can move towards and away from the third reclining board 3. A connecting rod 63 is rotatably arranged between the sliding rod 61 and the top support plate 62. When the second reclining board 2 and the third reclining board 3 are in the initial posture, the connecting rod 63 and the top support plate 62 are in a V shape, and the connection part between the connecting rod 63 and the top support plate 62 abuts against the ground. The elevation angle adjusting mechanism 6 further includes a driving component 64 for driving the sliding rod 61 to move towards and away from the third reclining board 3 and a locking component 65 for locking the sliding rod 61 after the sliding rod 61 moves in place.

[0038] With such a design, when the user lies on the maintenance tool bench in the initial posture, the user can control the movement of the sliding rod 61 by operating the driving component 64, so that the sliding rod 61 pushes the connecting rod 63, and then pushes and flips the third reclining board 3 connected to the top support plate 62, achieving the effect of changing the elevation angle of the third reclining board 3 according to the lifting angle of the user's head. And by locking the sliding rod 61 after adjustment by the locking component 65, it is ensured that when the user's head rests on the third reclining board 3, the third reclining board 3 can maintain the elevation angle unchanged.

[0039] Specifically, a roller for contacting the ground is arranged at the connection part between the connecting rod 63 and the top support plate 62, which is used to reduce the frictional resistance between the connection part between the connecting rod 63 and the top support plate 62 and the ground when the elevation angle adjusting mechanism 6 is adjusted.

[0040] In an embodiment, the driving component 64 includes a rotating shaft seat 641 arranged at the bottom of the body of the second reclining board 2. A shaft rod 642 is rotatably arranged on the rotating shaft seat 641. One end of the shaft rod 642 is provided with a handle 643 for the user to hold and rotate, and the other end of the shaft rod 642 is provided with a gear 644. A tooth groove meshing with the gear 644 is formed at the bottom of the sliding rod 61.

[0041] With such a design, the user can drive the rotation of the gear 644 by manually rotating the handle 643, and then push the sliding rod 61 forward through the meshing relationship between the gear 644 and the tooth groove.

[0042] It should be noted that when the third lying board 3 changes from the initial posture to the Z-shaped posture, the user can adjust the angle directly by bending the third lying board 3 without using the hand crank handle 643 .

[0043] In one embodiment, the locking assembly 65 includes a ratchet 651 that rotates synchronously with the gear 644 and a pawl component 652 disposed at the bottom of the second lying board 2;

[0044] The pawl component 652 includes a pawl support arranged at the bottom of the second lying board 2, and a pawl compatible with the ratchet 651 is slidably arranged on the pawl support. A sliding groove for the pawl to slide is provided on the pawl support. When the second lying board 2 is in the initial posture, the pawl is located in the rotation area of ​​the ratchet 651. The pawl is used to prevent the ratchet 651 from rotating when the sliding rod 61 moves away from the third lying board 3. When the second lying board 2 is in a Z-shaped posture, the pawl is not located in the rotation area of ​​the ratchet 651.

[0045] Such design enables the pawl in the initial posture to prevent the ratchet 651 from rotating when the slide bar 61 moves away from the third lying board 3, thereby providing support for the user who is leaning against the third lying board 3. When the second lying board 2 changes from the initial posture to the Z-shaped posture, the second lying board 2 flips and tilts, so that the pawl moves along the slide groove away from the ratchet 651 under the action of gravity, so that the forward and reverse rotation of the ratchet 651 is not affected by the pawl, thereby ensuring that in this state, the user can arbitrarily move the third lying board 3 to complete the angle adjustment.

[0046] In one embodiment, a plurality of storage slots for placing tools are provided on the body of the first lying board 1, and magnetic plates for adsorbing tools are provided in the storage slots.

[0047] This design, by placing the maintenance tools in the storage slot, is convenient for the user to take the required maintenance tools when sitting on the third lying board 3 in a Z-shaped posture. At the same time, the magnetic tool materials are adsorbed by the magnetic plate, which can minimize the collision and falling of the tool materials during the movement.

[0048] In one embodiment, the first lying board 1, the second lying board 2 and the third lying board 3 are all provided with storage grooves for receiving the universal wheels, so that the universal wheels can be stored in the storage grooves when in a folded position.

[0049] Such design ensures that when the second lying board 2 and the third lying board 3 are turned over and folded toward the first lying board 1, the universal wheels thereon will not interfere with the board body, thereby reducing the occupied space of the maintenance tool bench in the folded position.

[0050] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as shown in the attached drawings). If the specific posture changes, the directional indications will also change accordingly.

[0051] In addition, if there are descriptions such as "first" and "second" involved in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those skilled in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0052] In addition, "a plurality of" means two or more.

[0053] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A maintenance tool bench, comprising a first lying board (1), a second lying board (2) and a third lying board (3) which are hinged in sequence, characterized in that: The first lying board (1), the second lying board (2) and the third lying board (3) can be rotated into an initial posture for a person to lie flat, a Z-shaped posture for a person to sit and a folded posture for storage and carrying; the first lying board (1) is provided with a flip limit assembly (4) and a guide rail assembly (5), the flip limit assembly (4) is used to limit the second lying board (2) from continuing to flip after the first lying board (1), the second lying board (2) and the third lying board (3) are flipped into the Z-shaped posture; the guide rail assembly (5) is used to guide the second lying board (2) to move up and down along the guide rail assembly (5), and to make the second lying board (2) flip down to the folded posture together with the third lying board (3) when the second lying board (2) moves down to the lower limit position; an elevation adjustment mechanism (6) is provided between the second lying board (2) and the third lying board (3), which is used to adjust the upward flip angle of the third lying board (3) in the initial posture.

2. A maintenance tool bench according to claim 1, characterized in that: The first lying board (1), the second lying board (2) and the third lying board (3) are all composed of a board body and a plurality of universal wheels located at the bottom of the board body; The flip limit assembly (4) comprises at least one stopper arranged on the body of the first lying board (1); when the second lying board (2) and the third lying board (3) are flipped to a Z-shaped posture, the second lying board (2) abuts against the stopper, and the universal wheel of the third lying board (3) abuts against the second lying board (2).

3. A maintenance tool bench according to claim 2, characterized in that: The guide rail assembly (5) comprises a fixed guide rail (51) arranged on the side of the first lying plate (1) close to the second lying plate (2); a movable guide rail (52) capable of moving up and down is slidably arranged in the fixed guide rail (51); a protrusion (53) penetrating the fixed guide rail (51) is arranged on the movable guide rail (52); a compression spring (54) is arranged between the protrusion (53) and the fixed guide rail (51); when the compression spring (54) is in a natural state, the movable guide rail (52) is located above the ground; both the fixed guide rail (51) and the movable guide rail (52) are provided with strip-shaped movable holes for the corresponding rotating shaft of the second lying plate (2) to move up and down; when the movable guide rail (52) moves down to the lower limit position, the corresponding rotating shaft of the second lying plate (2) can move along the strip-shaped movable hole to the bottom of the universal wheel of the first lying plate (1).

4. A maintenance tool bench according to claim 2, characterized in that: The elevation angle adjustment mechanism (6) comprises a slide bar (61) slidably arranged at the bottom of the second lying board (2) and a top support plate (62) rotatably arranged at the bottom of the third lying board (3); the slide bar (61) can move toward and away from one side of the third lying board (3); a connecting rod (63) is rotatably arranged between the slide bar (61) and the top support plate (62); when the second lying board (2) and the third lying board (3) are in an initial posture, the connecting rod (63) and the top support plate (62) are in a V shape, and the connection between the connecting rod (63) and the top support plate (62) is in contact with the ground; the elevation angle adjustment mechanism (6) also comprises a driving component (64) for driving the slide bar (61) to move toward and away from one side of the third lying board (3) and a locking component (65) for locking the slide bar (61) after the slide bar (61) moves into position.

5. A maintenance tool bench according to claim 4, characterized in that: The driving assembly (64) includes a rotating shaft seat (641) arranged at the bottom of the second lying board (2), and a shaft rod (642) is rotatably arranged on the rotating shaft seat (641). A handle (643) for a person to hold and rotate is arranged at one end of the shaft rod (642), and a gear (644) is arranged at the other end of the shaft rod (642). A tooth groove meshing with the gear (644) is opened at the bottom of the sliding rod (61).

6. A maintenance tool bench according to claim 5, characterized in that: The locking assembly (65) comprises a ratchet wheel (651) that rotates synchronously with the gear (644) and a ratchet component (652) that is arranged at the bottom of the second lying board (2); The pawl component (652) includes a pawl support arranged at the bottom of the second lying board (2), and a pawl adapted to the ratchet (651) is slidably arranged on the pawl support. A sliding groove for the pawl to slide is provided on the pawl support. When the second lying board (2) is in an initial posture, the pawl is located within the rotation area of ​​the ratchet (651). The pawl is used to prevent the ratchet (651) from rotating when the sliding rod (61) moves away from the third lying board (3). When the second lying board (2) is in a Z-shaped posture, the pawl is not located within the rotation area of ​​the ratchet (651).

7. The maintenance tool bench according to claim 2, characterized in that: The first lying board (1) is provided with a plurality of storage slots for placing tools, and the storage slots are provided with magnetic plates for adsorbing tools.

8. The maintenance tool bench according to claim 2, characterized in that: The first lying board (1), the second lying board (2) and the third lying board (3) are all provided with storage grooves for storing the universal wheels, so that the universal wheels can be stored in the storage grooves when in a folded posture.

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